Virtual Reality Applications in field of Cognitive Assessment, Training and Rehabilitation
Author: Gurkiran Kaur1, Shweta Dua2,
1,2 Department of Instrumentation, Bhaskaracharya College of Applied Sciences, University of Delhi, New Delhi, India
Abstract: Virtual reality systems have emerged as a novel therapeutic tool in the areas of physical and cognitive rehabilitation. Virtual reality (VR) is broadly defined as an advanced computer interface that allows the user to have interactive simulations and hence become immersed within simulated environments. Virtual Reality systems allow precise and strategic control of complicated stimulus presentations to develop assessment and training environments. Encouraging results have been reported
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These side effects need to be considered and evaluated so that Virtual Reality can be used as a safe and risk free therapy tool. Two general categories of Virtual Environment immersion related side effects have been reported, namely, cybersickness and aftereffects. Cybersickness is a form of motion sickness with symptoms that include nausea, vomiting, eyestrain, disorientation, ataxia, and vertigo [42]. Cybersickness is believed to be related to sensory-cue incongruity. This is thought to occur when there is a conflict between perceptions in different sense modalities (auditory, visual, vestibular, proprioceptive) or when sensory cue information in the Virtual Environment is incongruent with what is felt by the body or with what is expected based on the user’s history of real-world sensorimotor experience. Aftereffects may include such symptoms as disturbed locomotion, changes in postural control, perceptual-motor disturbances, past pointing, flashbacks, drowsiness, fatigue, and generally lowered arousal [43]. The reported occurrence of side effects in virtual environments in unimpaired populations varies across studies, depending upon such factors as the type of VE program used, technical drivers (i.e., vection, response lag, field of view, etc.), the length of exposure time, the person’s prior experience using VEs, active versus passive movement, …show more content…
(1995). Surface display: Concept and implementation approaches. Proceedings of the Fifth International Conference on Artificial Reality and Tele-Existence. (185–192).
[38] Burdea, G. C. (1996). Force and touch feedback for virtual reality. New York: Wiley.
[39] Tan, H. Z., & Pentland, A. (1997, October). Tactual display for wearable computing. Proceedings of the International Symposium on Wearable Computing (pp. 84–89). Cambridge, MA.
[40] Lahav, O., & Mioduser, D. (2002). Multi-sensory virtual environment for supporting blind persons’ acquisition of spatial cognitive mapping, orientation, and mobility skills. In P.Sharkey, C. S. Lanyi, & P. Standen (Eds.), Proceedings of the Fourth ICDVRAT (pp. 213–222). Reading, UK: University of Reading
[41] Cohen, I., Li, H., & Lee, M. W. (2002, December). Human body posture inference for immersive interaction. ACM Multimedia 2002, Juan Les Pins, France
[42] Kennedy, R. S., Berbaum, K. S., & Drexler, J. (1994). Methodological and measurement issues for identification of engineering features contributing to virtual reality sickness. Paper presented at Image 7 Conference, Tucson,
What were the results? Were they statistically significant (i.e., p0.20) What was the clinical importance of the results? Report the effect size if included in the study.
\figref{fig:opepos}) and then gathered acceleration data of the smarphone and smartwatch. Firstly, we asked the participant to wear a smartwatch on his left wrist. After wearing the watch, we also asked the participant to perform contexts that were showed the smartphone's display in a randomized order for approximately ten seconds or until we give the participant a sign. These contexts are described by using document with the instructions. When the participants perform a'\,--\,j', we asked the participant to perform while walking between signs: the diameter between the signs is 10\,meters (approxiametely 10.94\,yd).
When reading Stereo Sue by Oliver Sack in 2006, I realized how important our vision is in multiple ways. The memory of a close friend that passed a few years ago continued to come to mind. My friend named Bill Vickery lost his vision after a surgery on his optic nerve where the nerve was beyond repair and completely damaged. Shortly after his surgery and the loss of sight be started to fall into depression and I was able to see he really needed some help.
HCI Principles January 16 2015 This document contains the criteria for P2 and M1 for Assignment 1 – Unit 23. Unit 23 – Assignment 1 Aaron Martin Contents Task 1 (P2) – Discuss the Fundamental Principles of HCI 3 Perception 3 Colour 3 Trichromatic System 3 Luminance 4 Pop Out Effect 4 Pattern 5 Proximity 5 Continuity 5 Symmetry 5 Similarity 5 Common grouping 5 Connectedness 5 Objects 5 Geon’s 5 Use of Gross 3D Shapes 5 Information Processing 5 Humans as a Component 5 Overview of Human Information Processing (HIP) 5 Overview of Goals, Operators, Methods and Selection (GOMS) 5 Specialist 5 Design for Specialist Uses 6 Input or Output for the Visually 6 Orally 6 Aurally or Physically 6 Challenged 6 Remote Control Devices 6 Head Up Displays 6 Behaviour Models 6 Predictive models 6 Reaction time, 6 Keystroke Level Model (KLM) 6 Throughput (TP) 6 Fitts’ Law 6 Task 2 (M1) – Explain How an HCI can be adjusted for a User with Special Needs 7 Voice Recognition 7 Text-To-Speech 7 Task 1 (P2) – Discuss the Fundamental Principles of HCI Perception Perception, this is what allows the specified user to see and feel when interacting with a HCI; it is very important that the user can do these things so they get a complete understanding of what they are using. This is when various different patterns and colours are used as well as objects; all of these allow the user to interact personally with the interface. Colour It is very important that when designing an interface that you
Thin film force sensors are put to the devices’ index finger, middle finger, and thumb. The signals from those sensors are then used to trigger the corresponding nerve stimulation. Once again, Spetic grabs another cherry. This time his touch is delicate and he is able to successfully pull the stem off the fruit without damaging
Keller states, “I was so entranced ‘seeing’ that I did not think about sight” (p. 4). Despite not being able to understand vision, she is able to depict her awareness of her surroundings figurative language. Through her uncanny use of humor, the reader can understand that Keller shows her awareness by using the analogy of “sight” to describe her experience of blindness. The author shows awareness of her disability, but interprets it as a new perspective that can provide her with a keen imagination.
In “The Veldt,” by Ray Bradbury, the parents, George and Lydia, are to criticize for their own annihilation. The Veldt is a story about how virtual reality had a deficient influence on a family. This family moved into a house with an excessive load of technology. Everyday the children, Wendy and Peter, would go to the nursery and wreckage around with the virtual reality. They spent hours and sometimes even days in there.
In the novel Rainbows End, author Vernor Vinge depicts a futuristic world that is almost completely dependent on digital technology. Taking place in the year 2025, this “Digital Age” is home to many innovative advancements. Digital technology has become so omnipresent in the world Vinge creates that it has found its way into all aspects of daily life. The idea of a virtual reality where people no longer have to rely on their imagination has now become a normal part of everyday life. Scientific developments in areas including medicine are also a vital part of this society, and have a great impact on the novel’s characters.
One of the biggest problems relates to seizures, loss of awareness and motion sickness. Nausea is known to happen when a person spends some time in a VR environment. The main cause is blamed on the effects on balance because of the changing shifts in perception. People are affected the same way when on a ship and their balance is affected, causing feelings of nausea. Some individuals can go for numerous hours in a VR environment without noticing any side effects while others can only last 30 minutes.
Stevie Wonder’s True Story “There’s so much music in the air. You hear this music in your mind first; that 's the way it is for me. Then I go after getting it the exact way I imagined it” said Stevie Wonder (“Stevie Wonder”) To begin, blindness is the inability to tell light from dark, or the total inability to see (“Visual Impairment and Blindness”).
Virtual reality has improved access to medical training for surgeons across the world. In the near future, surgical students
Are you surprised by the results? Why or why not? Yes, I am surprised with the results; because I had never
The concept of accessibility extends to a wide range of facilities that are a part of our everyday usage such as elevators, Braille signage and sound-enabled signals at pedestrian crossings. The overall aim of this concept is to enable people with special requirements to gain access to aspects of everyday life that include transportation, education, employment, housing, entertainment and so on.
Virtual Reality its use in education, culture and the Impact on Society Abstract The aims and objectives, of this paper, are to discuss Virtual reality (VR), and its profound usage within educational systems. It will be supported by different research evidence which speak to the application of such. It is underscored by literature reviews and intends to enumerate the potential advantages of implementation within the Caribbean.
Virtual Reality is the buzz around these days. A very common question these days is "What is Virtual Reality?" Virtual Reality also known as VR is a three-dimensional computer generated environment experience in which the user can interact with the surroundings. This interaction is known as "telepresence" and it is this interaction that makes it unique. In other words, it is an environment created with special electronic equipment, which a user feels he is a part of without actually being there.